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How does one create a spiral type of image with a pen laser?..tia sal2

Greets All

How does one create a spiral type of image with a pen laser?

I can make a Spirograph image using the instructions below.

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But I would Like to make a simple Spiral like in the link below

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TIA

Reply to
<sal
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What co-ordinate system are you using?

Perhaps start with the equation in polar co-ordinates and convert..

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Reply to
CWatters

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Try these in cartesian co-ordinates..

x = t cos t y = t sin t

from...

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Reply to
CWatters

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